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Biodiesel lower-temperature fluidity improver and preparation method thereof

A low-temperature fluidity, biodiesel technology, used in the petroleum industry, fuel additives, liquid carbon-containing fuels, etc., can solve the problems of ineffective cooling point improvement, poor biodiesel susceptibility, and limited biodiesel applications. The effect of preventing crystal formation, improving susceptibility, lowering freezing point and freezing point

Inactive Publication Date: 2010-06-30
JINAN DEV ZONE XINGHUO SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the composition and structural characteristics of biodiesel, the cold filter point of biodiesel is around 0°C, and crystallization and gelation at low temperatures limit the application of biodiesel under low temperature flow conditions
At present, the common diesel oil low-temperature fluidity improvers can improve the freezing point of biodiesel, but the improvement effect on the freezing point is not obvious, and the sensitivity to some biodiesel is not good, and there is no obvious improvement effect

Method used

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  • Biodiesel lower-temperature fluidity improver and preparation method thereof
  • Biodiesel lower-temperature fluidity improver and preparation method thereof
  • Biodiesel lower-temperature fluidity improver and preparation method thereof

Examples

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Effect test

Embodiment 1

[0014] Dissolve 28g (1mol) of ethylene, 86g (1mol) of vinyl acetate, 98g (1mol) of maleic anhydride, and 104g (1mol) of styrene in 650g of toluene, mix well, let stand for 30min, and add 3.5g of azobisiso Butyronitrile initiator, after reacting 2h under the temperature of 60 ℃, under 8Mpa pressure, add the mixed solution of the ethanol containing 1wt%NaOH and water (V / V=1) of 31g to stop polymerization, polymer product removes solvent and does not have After the reacted monomers are polymerized, they are washed with water, purified and dried to obtain the biodiesel low-temperature fluidity improver A of the present invention.

Embodiment 2

[0016] Dissolve 28g (1mol) of ethylene, 86g (1mol) of vinyl acetate, 98g (1mol) of maleic anhydride, and 104g (1mol) of styrene in 1200g of toluene, mix well, let stand for 60min, and add 9g of azobisisobutyl Nitrile initiator, after reacting for 1h at a temperature of 100°C and under a pressure of 8Mpa, add 15g of a mixed solution of ethanol / water (V / V=1) containing 1wt%NaOH to terminate the polymerization, and the polymerization product is desolvated and unreacted After polymerizing the monomers, the biodiesel low temperature fluidity improver B of the present invention is obtained by washing, purifying and drying with water.

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Abstract

The invention discloses a biodiesel lower-temperature fluidity improver, which is an ethene-vinyl acetate-maleic anhydride-styrene quadripolymer and has the chemical structural formula (I), wherein k, L, m and n are respectively an integer ranging from 5 to 50. The invention also discloses a preparation method of the biodiesel lower-temperature fluidity improver. The biodiesel lower-temperature fluidity improver has excellent stabilization and dispersion function for microcrystalline and can effectively lower the condensation point and the cold filtering point of biodiesel, thereby improving the sensitivity of the biodiesel from different sources.

Description

technical field [0001] The invention relates to a biodiesel low-temperature fluidity improver and a preparation method thereof, in particular to a biodiesel low-temperature fluidity improver composed of ethylene-vinyl acetate-maleic anhydride-styrene tetrapolymer and its Preparation. Background technique [0002] Biodiesel is a clean and renewable energy source. It is mainly a liquid fuel made from oil crops such as soybeans and rapeseeds, oil-bearing forest fruits such as oil palm and pistachio, engineering microalgae and other oil-bearing aquatic plants, animal fats, and waste cooking oil. , is an excellent substitute for petroleum diesel. The diesel molecule is composed of about 16 carbon chains, and the vegetable oil molecule is generally composed of 14-18 carbon chains, which is similar to the number of carbons in the diesel molecule. According to chemical composition analysis, biodiesel fuel is a kind of high fatty acid methane, which is obtained by unsaturated oleic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/197C10L10/14C08F210/02C08F218/08C08F222/08C08F212/08
Inventor 车春玲
Owner JINAN DEV ZONE XINGHUO SCI & TECH RES INST
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